Improvement in proqesses of embossing mounted veneers



O. H. HAGEMANN. Process of Embossing Mounted Veneers;

No. 198,381. Patented Dec. 18,1877.

' A; mromm MPETERB, FHOTOJJTHOGRAPHER. WASNWGTQ'L D C.

' stand the pressure or the heat. Wood has IMPROVEMENT IN G. HEINRIGH'AGEMANN', on NEW YORK, N. Y.

P ROO ESSES 0F EMBOSSING MOUNTED VENEERS.

. l l Specification forming part of Iletiie rs Pat ent N o. 198,!381,dated December 18, 1877; application filed To all whom it may concern:

Be it known that I, (J. HEINRICH HAGE- MANN, of New York city, in thecounty and State of New York, have invented a new and Improved Processof Embossing Mounted Veneers, of which the following is a specification:

Figure l is a face view of a veneered block embossed according to myinvention. Fig. 2 is a sectional view of said veneered block after ithas been embossed. Fig. 3 is a similar section of said veneered blockbefore it has been embossed.

Similar letters of reference indicate corresponding parts in all thefigures.

The object of this invention is to devise a practicable method ofembossing hard wood and other mounted veneers under cold pressure, andto manufacture such embossed veneers for use in the arts, at reasonablecost, and without impairing the beauty of the grain of the wood.

Heretofore wood has been embossed under pressure of heated molds, thewood being kept moist with water while under pressure. Even such woodcould not be a thin veneer, as this has not sufficient inherent strengthto withalso been embossed in cameo and intaglio dies to have positiveand negative reliefs formed on its opposite sides. This did not refer tomounted veneers, and such wood could not afterward be properly appliedtp the plain surface to be mounted by the veneer.

Now, a veneer, in order to expose the beauty of its grain, must have itsgrain run substantially parallel to its surface. It could therefore notbe subjected to the processes of embossing heretofore in vogue; and thesteaming process, by opening the pores of the wood, would also be veryobjectionable, even if ap plicable to veneers, which it i not, as woodonce steamed is very apt to absorb moisture and change its form whenmoistened. Moreover, cross-grained wood is not strong enough, whenembossed and applied to ordinary furnilhre, to stand the usage to whichfurniture is Usually exposed.

My invention consists of the following process:

First step: The veneer to be embossed is April 23, 1877.

first boiled in linseed-oil or other oil, or otherwise treated andsoaked with oil, which renders it pliable to a certain extent, and atthe same time increases its durability and renders it subject to a moreperfect polish.

Second step: The oiled veneer a is next dried, and when dry is properlyglued to the face of the block b of wood, on which it is to remain, asin Fig. 3. This block should he cross-grained, to prevent warping, andto f. eilitate the subsequent process of embossing.

Third step: The oiled veneer thus secured upon its block I) now has itssurface prepared in the desired manner-4. c., sandpapered, polished,oiled, or otherwise treated as desired, for final surface effect. Ofcourse, if such preparation is not desired, the embossing process may becarried on without it; but if the wood is polished, as stated, theeffect thereof will be perceived in all the ornaments and surfacesproduced by the subsequent process of embossing.

Final step: The block b, containing the oiled veneer a, is now placed ona flat bed, and a die containing the reverse of the desired ornament ispressed upon the veneer, imparting to the surface thereof the desiredoutline and ornamentation, as indicated in Figs. 1 and 2.

The veneer prepared as stated will receive an impression of absoluteclearness and sharpness of outline, and will properly retain the same,not changing it under the influence of such heat or moisture to whichhousehold articles or pieces of furniture are usually ex posed. Theupper surface of the block b will in. part partake of the impression, asindicated in Fig. 2, leaving the veneer, however, thickest where itssurface is most raised, and thinnest whcre it is most depressed. Thusthe most exposed parts of the veneer are also made strongest, andreceive an additional support from a raised wave of the wood b below.

The process described is simple and eifective. Its result is as perfectas it is possible to make anything by pressure. The beauty of the grainand of the polish, if any, is retained to the fullest extent, and yetthe entire operation is inexpensive.

After the proper die has once been made the expense of embossing theveneer will be very little.

whoily by the veneer, which is continuous and unbroken, as set forth.

2. As a new manufacture, an ornamental wood article, consisting of acombined strip of wood andveneer, cemented together throughout theircontiguous faces, and. having the continuous veneer face embossed withfigures in relief, as described.

O. H. HAGEMANN. Witnesses ERNEST O. WEBB, 1?. v. BRIESEN.

